Bad Battery Indication

It seems that my micro-PiHawk Drone has died. Mission Planner indicates PreArm Battery Unhealthy. I checked the cable between the FC and ESC and the VBAT at the ESC (~ 11V). I replaced the battery, thinking it might be the internal resistance of the old battery (I have flown a lot in the last couple years). Same result.

Next I set the Battery Minimums to zero in Mission Planner. I was able to Force Arm. Props spun for 10 Seconds (Timeout value of 10). Then the props stopped and Mission Planner indicated ‘Bad Battery’.

I have been research replacement stacks (FC/ESC), as it seems that the Matec F405 HDTE is EOL. I landed on the SpeedyBee F405 V4)) and would be interested in any recommendations. I want to use the existing sensors/radio (GPS, Fsky receiver, 915MHz telemetry module etc.).

Thanks!

Seems odd that it would work, then die. Maybe the unit is dirty? Did you try blowing it off with air? Did you deconstruct it and examine with a magnifier or poke around with a VOM?

The following blog, albeit possibly dated, was a predecessor to the kit. Perhaps it might help?

https://dojofordrones.com/pi-zero-drone/

Thanks for your response!

Yes, I found it odd too. I did deconstruct it and checked continuity. All connections good. VBAT is 11.3V at the FC. Mission Planner continues to indicate ~5.6V (Sometimes 3.3V) with new battery.

My PiHawk drone and Rover bother work just fine. I even swapped telemetry radios as a longshot. same result.

I will check out the blog and let you know where I land (no pun intended)!

Thanks again!